Chemical fire-extinguisher.



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CHEMICAL FIRE EXTINGUISHER.

APPLICATION FILED JAN. 21, 1905.

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HANS MIKOREY, OF SOHOENEBERG, GERMANY, ASSIGNOR TO THE FIRM OF W. GRAAFF & COMPANY, GESELLSCHAFT MIT BESOHRNKTER HAFTUNG, QF BERLIN, GERMANY.

specification of Letters Patent. I

Patented Sept. 19, 1905.

Application filed Iannary 21, 1905. Serial No. 242,162.

T0 @ZZ whom, it may concern.-

Be it known that I, HANS MIKOREY, a subject oi' the German Emperor, residing at No. 13 Wartburgstrasse, Schoeneberg, near Berlin, Germany, have invented a new and useful Improved Chemical Fire Ex'tinguisher, of which the following is a specification.

This invention relates to a chemical lire-extinguisher of that knownv type in which the lire-extinguishing substance is caused to act by the destruction of a vessel containing acid or the like, said destruction being effected by means of a striking device. This device, according to the invention, consists of a striking-weight and a spring in such a combination that the striking-weight when released freely drops upon the acid vessel and its striking power is increased by the action of the spring, which is kept tensioned by the striking-weight and set free by the release of the latter.

Referring to the accompanying drawings,

Figure l is a side elevation and partial section of the apparatus in the operative position. Fig. 2 is a detail section of the releasing and vessel-striking device in the unreleased position. Fig. 3 is an end view of the ball-weight and head of the bolt seen from below. Fig. 4 is View similar to Fig. 2 with the striking device in the released position; and Fig. 5 is an end View similar to Fig. 3, showing the ball-weight and the head of the bolt in the respective released position.

The apparatus consists of a casing or receptacle A filled with the liquid, which when the apparatus is operated is ejected through a suitable nozzle B. The releasing and vessel-striking device is secured in the side wallof the apparatus by means of a lid or cover b, over which the yoke-shaped handle c of the apparatus is arranged. The cage or holder a is supported beneath the lid b within the apparatus and contains the acid vessel Z. In the middle of the lid a turnable bolt cZ extends through a stuffing-box t into the holder a and is vertically directed to the tapering end k of the acid vessel Z. The said bolt in order to be turned is provided at its outer end with a handlever g, while it terminates within a prismatic head f, which serves as a stop for the ballweight e slidable thereon. The guiding-passage of the weight through which the bolt Z y acid vessel.

extends and the prismatic head f have the same cross-section. so that the head only supports the weight when located transversely to the guiding-passage, Figs. 2 and 3, but releases the weight when located longitudinally, Figs. 4 and 5, so that the weight can slide down o2 the bolt beyond the head. In order to obviate a turning ofthe weight on the bolt, whereby the weight is liable to slide down unintentionally and also to reliably guide the weight in the desired direction when sliding downward, guide-rods may be provided, as shown, which are parallel to the bolt CZ and attached to the lid Z. A spring z' is coiled round lthe bolt CZ, said coils being irmlycompressed between the weight and the lid Z), so that the spring is then tensioned.

The hand-lever g serves for the release of the striking device when the apparatus is to be operated. For this purpose the bolt OZ is turned, by means of the hand-lever g, at an angle oi' ninety degrees-Z. e., from the position as shown in Fig. 3 into the position according to Fig. 5. As in this position the head of the bolt and the guiding-passage of the weight coincide, the latter is thus released and drops down freely, the starting impulse being given by the spring. By means of the guide-rods the path ofthe dropping weight is against the tapered apex Ze of the Owing to the impulse which is transinittedby the spring-z' to the weight ai'- ter the release the striking power is increased, and in consequence of the accelerating momentum ot' the weight, assisted by the action of the spring', the total destruction' of the acid vessel Z is'insured. Fig. 4 shows the parts after the release has taken place. The shape of the weig'ht is not essential for carrying out the invention; but the spherical form is preferred.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim, and wish to secure by Letters Patent, is-

A chemical fire-extinguisher, the combination of a casing forming the liquid-receiver,

an acid vessel located in a holder within the said casing, a weight slidably arranged above IOO the acid vessel within the casing and provided with longitudinal passages, Aguide-rods secured to the top of the holder and passing through several of the passages to guide the Weight a turnalole bolt extending through a stuffing-box of the easing and through one of 5 the said passages and terminating with a head which forms a releasalole stop underneath the Weight, so as to normally hold the latter in a suspended position, While by the turning of the bolt, the Weight can be released so as to IO strike the acid vessel and destroy it for operating the {ire-extinguisher, substantially as described and shown in the drawings.

In testimony WhereofI have signed my name to this specification in the presence of two subsoribing Witnesses.

HANS MIKOREY.

Witnesses WOLDEMAR HAUPT, HENRY HAsPER. 

